100201012321 has 4 divisors (see below), whose sum is σ = 100205672644. Its totient is φ = 100196352000.

The previous prime is 100201012271. The next prime is 100201012339. The reversal of 100201012321 is 123210102001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 123210102001 = 7 ⋅17601443143.

It can be written as a sum of positive squares in 2 ways, for example, as 50888592225 + 49312420096 = 225585^2 + 222064^2 .

It is a cyclic number.

It is not a de Polignac number, because 100201012321 - 2²¹ = 100198915169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100201012721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2297760 + ... + 2340961.

It is an arithmetic number, because the mean of its divisors is an integer number (25051418161).

Almost surely, 2^100201012321 is an apocalyptic number.

It is an amenable number.

100201012321 is a deficient number, since it is larger than the sum of its proper divisors (4660323).

100201012321 is an equidigital number, since it uses as much as digits as its factorization.

100201012321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4660322.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 100201012321 its reverse (123210102001), we get a palindrome (223411114322).

The spelling of 100201012321 in words is "one hundred billion, two hundred one million, twelve thousand, three hundred twenty-one".